Cardinals vs Nationals Prediction — AI Finds CAN'T MISS MLB Lines & Props (May 09)
Updated: 2025-05-07T03:31:50.923562ZBy Remi at Leans.AI — AI picks for ATS, ML, OU & props
The St. Louis Cardinals and Washington Nationals are set to clash on May 9, 2025, at Nationals Park, with both teams aiming to gain momentum in their respective divisions. The Cardinals, currently at 19-19, look to build on their recent success, while the Nationals, at 17-21, aim to leverage home-field advantage to turn their season around.
Get key insights, betting trends, and AI-powered predictions to help incorporate into your betting strategies.

GAME INFO
Date: May 09, 2025
Start Time: 6:45 PM EST
Venue: Nationals Park
Nationals Record: (17-21)
Cardinals Record: (19-19)
OPENING ODDS
STL Moneyline: -104
WAS Moneyline: -115
STL Spread: -1.5
WAS Spread: +1.5
Over/Under: 8.5
STL
Betting Trends
- The Cardinals have been strong against the spread (ATS) recently, with a 5-0 record in their last five games.
WAS
Betting Trends
- The Nationals have struggled ATS at home, with a 2-6 record in their last eight home games against St. Louis.
MATCHUP TRENDS
- The total has gone OVER in 12 of the last 15 games between the Cardinals and Nationals, indicating a trend toward high-scoring affairs.
STL vs. WAS
Best Prop Bet
- Remi's searched hard and found the best prop for this matchup: J. Wood over 0.5 Total Bases.
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St. Louis vs Washington Prediction & Odds:
Free MLB Betting Insights for 5/9/25
Washington’s offense, hitting just .242 as a team, has struggled to sustain rallies and lacks consistent pop, which has made timely hitting critical to their success. Defensively, both clubs have played relatively clean baseball, but the Cardinals have had the clear edge in late-inning execution, thanks in part to a bullpen that has recently found its footing. One trend that stands out is how frequently these two teams play high-scoring games—the total has gone OVER in 12 of their last 15 meetings—suggesting that both offenses could have opportunities if the starters aren’t sharp. Historically, St. Louis has also controlled this matchup, winning six of the last nine overall and six of their last eight at Nationals Park. Weather could also play a small role, with cloudy skies and cooler temperatures forecasted, potentially affecting fly ball carry and pitcher grip. For the Cardinals, this game represents a chance to keep their win streak alive and move above .500 for the first time in weeks, while for the Nationals, it’s an opportunity to shake off recent struggles and protect home field in what could be the start of a crucial homestand. Both teams have clear strengths and weaknesses, and the game may come down to which starting pitcher can settle in fastest and which lineup can capitalize on early scoring chances. While the Nationals are eager for a momentum shift, the Cardinals arrive as the hotter team with a more consistent formula for winning, and they’ll look to extend that edge in this inter-divisional showdown.
Jordan Walker comes through with some insurance runs! pic.twitter.com/Eny4qON7hT
— St. Louis Cardinals (@Cardinals) May 7, 2025
St. Louis Cardinals MLB Preview
The St. Louis Cardinals enter their May 9, 2025 matchup against the Washington Nationals with renewed confidence and growing consistency after leveling their record at 19-19 on the back of a five-game winning streak. A team that struggled with identity and rhythm early in the season has begun to find its stride, particularly on the offensive end where the Cardinals boast a team batting average of .260, an on-base percentage of .334, and a slugging percentage of .401. This offensive balance has allowed them to score in a variety of ways, combining situational hitting with timely power, and enabling them to build leads rather than always playing from behind. The middle of the order has begun to click, with veteran hitters showing patience and younger players stepping up to lengthen the lineup. On the mound, right-hander Erick Fedde is slated to start, bringing a 2-3 record and a 4.78 ERA into this outing. While not dominant, Fedde has shown the ability to pitch deep enough into games to keep his team competitive, especially when the offense gives him early support.
The Cardinals’ bullpen, a concern earlier in the year, has settled down in recent weeks, improving its ability to hold leads and close games—key components in any sustained winning run. Defensively, St. Louis has tightened up, committing fewer errors and executing key plays with greater consistency, a sign that the team is operating with more confidence and focus. Their success in head-to-head matchups with the Nationals adds to their psychological edge; the Cardinals are 6-2 in their last eight games played at Nationals Park and 6-3 overall in their last nine meetings with Washington. With momentum on their side and a lineup capable of creating pressure throughout the order, the Cardinals come into this road game expecting to win and continue their push toward the upper half of the NL Central. The key for St. Louis will be maintaining offensive pressure throughout the game and getting another solid outing from Fedde to avoid overexposing the bullpen. If they can control the pace early and neutralize Washington’s few offensive threats, the Cardinals have a prime opportunity to extend their win streak, gain ground in the standings, and solidify their identity as a legitimate contender in a wide-open National League race.

Credit: USA TODAY/IMAGN
Washington Nationals MLB Preview
The Washington Nationals return to Nationals Park on May 9, 2025, looking to halt a recent slide and reignite their season as they sit at 17-21, struggling to find sustained success in both pitching and offense. While the Nationals have shown flashes of potential, they remain a team searching for consistency, particularly on the mound where their collective ERA of 5.37 ranks among the league’s worst. Left-hander Mitchell Parker will take the ball with a 3-2 record and a respectable 3.48 ERA, representing one of the more dependable arms in the rotation. Parker’s recent outings have shown his capability to limit damage and pitch deep into games, but he’s often received little run support, a recurring issue that’s plagued the Nationals throughout the first month and a half of the season. Offensively, Washington holds a .242 team batting average with a .314 on-base percentage and a .386 slugging percentage, numbers that reflect a lineup still struggling to string together quality at-bats and generate big innings. The Nationals’ inability to capitalize with runners in scoring position has been particularly problematic, turning competitive games into missed opportunities. Players like CJ Abrams and Lane Thomas have shown promise at the top of the order, but the middle and bottom of the lineup have lacked consistent production, making it easier for opposing pitchers to navigate key innings.
Defensively, the Nationals have remained adequate, avoiding major lapses and giving their pitchers some breathing room with solid infield play and improved outfield positioning. The bullpen has been a mixed bag—capable of locking down innings on some nights and imploding under pressure on others—adding to the overall uncertainty surrounding late-game scenarios. Their recent track record at home, especially against the Cardinals, is troubling; Washington is 2-6 in their last eight games against St. Louis at Nationals Park and has struggled to contain their lineup in high-scoring affairs. With the Cardinals on a five-game win streak and showing much better form, the Nationals will need a collective effort to pull off a home win—strong innings from Parker, timely hits from the middle of the order, and clean defense from start to finish. This game marks an important opportunity for Washington to send a message that they can compete with hotter, more balanced teams and that their season isn’t yet defined by early inconsistency. If Parker can set the tone on the mound and the bats finally come alive in key spots, the Nationals could use this matchup to reset the tone of their season and regain some lost ground in the NL East.
THIRTY EIGHT. pic.twitter.com/sCiqiJsLQ9
— Washington Nationals (@Nationals) May 7, 2025
St. Louis vs. Washington Prop Picks (AI)
St. Louis vs. Washington Prediction (AI)

Remi, our AI sports wizard, has been pouring over millions of data from every facet between the Cardinals and Nationals and using recursive machine learning and cutting-edge AI to analyze the data to a single cover probability.
Remi has been most fixated on the linear correlation of factor emotional bettors regularly put on St. Louis’s strength factors between a Cardinals team going up against a possibly rested Nationals team. We’ve found the true game analytics appear to reflect a slight lean against one Vegas line in particular.
Unlock this in-depth AI prediction and all of our MLB AI picks for FREE now.
Below is our current AI St. Louis vs Washington picks, computer picks Cardinals vs Nationals, best bets, model edges, confidence ratings.
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DATE | GAME | LEAN | %WIN | UNITS | LEVEL |
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These picks update as information changes—injury reports, weather, and market movement. Each line shows our model’s fair price, the edge versus the market, and a unit confidence rating (1–10). Odds and availability vary by sportsbook and time. Edges are computed against the listed price; value may change after line moves. Always shop for the best number. See the full MLB schedule.
Cardinals Betting Trends
The Cardinals have been strong against the spread (ATS) recently, with a 5-0 record in their last five games.
Nationals Betting Trends
The Nationals have struggled ATS at home, with a 2-6 record in their last eight home games against St. Louis.
Cardinals vs. Nationals Matchup Trends
The total has gone OVER in 12 of the last 15 games between the Cardinals and Nationals, indicating a trend toward high-scoring affairs.
St. Louis vs. Washington Game Info
What time does St. Louis vs Washington start on May 09, 2025?
St. Louis vs Washington starts on May 09, 2025 at 6:45 PM EST.
Where is St. Louis vs Washington being played?
Venue: Nationals Park.
What are the opening odds for St. Louis vs Washington?
Spread: Washington +1.5
Moneyline: St. Louis -104, Washington -115
Over/Under: 8.5
What are the records for St. Louis vs Washington?
St. Louis: (19-19) | Washington: (17-21)
What is the AI best bet for St. Louis vs Washington?
Remi's searched hard and found the best prop for this matchup: J. Wood over 0.5 Total Bases.. Prices move—always shop for the best number.
What are St. Louis vs Washington trending bets?
The total has gone OVER in 12 of the last 15 games between the Cardinals and Nationals, indicating a trend toward high-scoring affairs.
What are St. Louis trending bets?
STL trend: The Cardinals have been strong against the spread (ATS) recently, with a 5-0 record in their last five games.
What are Washington trending bets?
WAS trend: The Nationals have struggled ATS at home, with a 2-6 record in their last eight home games against St. Louis.
Where can I find AI Picks for St. Louis vs Washington?
See our latest MLB picks and odds pages for 2025 to compare prices before you bet.
St. Louis vs. Washington Odds
AI algorithm Remi is pouring through loads of data points on each team. In fact, anytime the St. Louis vs Washington trends are analyzed, there’s always several intriguing angles to key in on. Not to mention games played at extreme travel distance almost always follow normal, predictable patterns.
St. Louis vs Washington Opening Odds
STL Moneyline:
-104 WAS Moneyline: -115
STL Spread: -1.5
WAS Spread: +1.5
Over/Under: 8.5
St. Louis vs Washington Live Odds
Games | PTS | ML | SPR | O/U | |
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Oct 19, 2025 8:04PM EDT
Seattle Mariners
Toronto Blue Jays
10/19/25 8:04PM
Mariners
Blue Jays
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–
–
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+112
-123
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+1.5 (-195)
-1.5 (+171)
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O 7.5 (-114)
U 7.5 (-101)
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MLB Past Picks
Remi—our in-house AI—prices every game and prop using multi-season priors, tempo/efficiency, injury/usage signals, and market movement.
We publish fair prices, recommended “buy-to” numbers, and confidence so you can bet prices, not teams.
This preview covers St. Louis Cardinals vs. Washington Nationals on May 09, 2025 at Nationals Park.
Odds shown reflect widely available numbers and may update closer to kickoff.
Want more? Check live edges, player props, and line moves on our MLB odds pages, and compare prices before you place a bet.
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LEAN | %WIN | UNITS | RESULT |
---|---|---|---|---|
TOR@SEA | OVER 7 | 54.9% | 3 | WIN |
LAD@MIL | UNDER 7.5 | 56.6% | 6 | WIN |
TOR@NYY | OVER 8 | 54.9% | 4 | WIN |
TOR@NYY | CARLOS RODON OVER 1.5 TOTAL WALKS ALLOWED | 53.3% | 3 | WIN |
NYY@TOR | OVER 7.5 | 54.8% | 2 | WIN |
LAD@PHI | OVER 7 | 53.8% | 3 | WIN |
SD@CHC | CHC -109 | 53.8% | 3 | WIN |
SD@CHC | OVER 7.5 | 54.5% | 4 | LOSS |
SD@CHC | CHC -111 | 54.8% | 4 | LOSS |
CIN@LAD | SHOHEI OHTANI OVER 1.5 BASES | 53.5% | 3 | WIN |
BOS@NYY | OVER 7 | 53.8% | 3 | LOSS |
CIN@LAD | ELLY DE LA CRUZ OVER 0.5 BASES | 54.4% | 4 | LOSS |
ARI@SD | SD -131 | 57.3% | 4 | WIN |
DET@BOS | BOS -115 | 56.4% | 5 | WIN |
NYM@CHC | NYM -110 | 54.1% | 3 | WIN |
HOU@ATH | ATH +118 | 50.8% | 4 | WIN |
NYM@CHC | OVER 7 | 54.5% | 3 | WIN |
STL@SF | OVER 7.5 | 55.9% | 5 | LOSS |
KC@LAA | TYLER TOLBERT UNDER 1.5 BASES | 54.4% | 4 | WIN |
MIL@SD | UNDER 9 | 54.7% | 4 | WIN |
MIA@PHI | KYLE SCHWARBER OVER 1.5 HITS+RUNS+RBIS | 53.3% | 3 | WIN |
WAS@NYM | OVER 8.5 | 56.1% | 6 | LOSS |
LAA@COL | COL +108 | 50.5% | 3 | WIN |
TOR@KC | UNDER 9 | 54.7% | 4 | LOSS |
SEA@KC | KC +1.5 | 62.3% | 5 | LOSS |
NYY@MIN | OVER 9 | 55.1% | 4 | WIN |
MIA@COL | OVER 10.5 | 55.0% | 4 | WIN |
MIA@COL | AGUSTIN RAMIREZ OVER 1.5 HITS+RUNS+RBIS | 54.3% | 4 | WIN |
SEA@KC | BOBBY WITT UNDER 0.5 SINGLES | 54.4% | 4 | LOSS |
PHI@LAD | LAD -113 | 54.7% | 4 | LOSS |
NYY@BOS | OVER 7.5 | 54.3% | 3 | WIN |
KC@PHI | PHI -130 | 58.3% | 4 | WIN |
LAD@SF | OVER 7.5 | 54.7% | 4 | LOSS |
NYM@PHI | PHI -122 | 55.6% | 4 | WIN |
KC@CLE | KC -104 | 52.0% | 3 | WIN |
CIN@SD | JAKE CRONEWORTH OVER 0.5 HITS | 53.1% | 3 | WIN |
WAS@MIA | MIA -123 | 55.2% | 4 | LOSS |
LAA@KC | UNDER 9.5 | 54.9% | 3 | WIN |
TEX@ARI | UNDER 9 | 54.2% | 4 | WIN |
SF@COL | UNDER 11.5 | 56.4% | 6 | LOSS |
SF@COL | RAFAEL DEVERS OVER 1.5 BASES | 56.1% | 6 | WIN |
MIA@WAS | WAS -110 | 54.4% | 4 | WIN |
NYM@DET | OVER 8.5 | 54.5% | 4 | WIN |
TEX@ARI | UNDER 9.5 | 56.4% | 6 | WIN |
TEX@ARI | ALEJANDRO OSUNA UNDER 1.5 BASES | 54.1% | 4 | LOSS |
ATL@CHC | CHC -116 | 55.1% | 3 | WIN |
PHI@MIL | OVER 8.5 | 55.0% | 3 | WIN |
ARI@LAD | SHOHEI OHTANI OVER 2.5 BASES | 54.2% | 4 | WIN |
SEA@CLE | CLE +1.5 | 57.2% | 3 | WIN |
CHC@SF | CHC -105 | 54.1% | 4 | LOSS |
NYY@CHW | RYAN MCMAHON OVER 0.5 BASES | 54.1% | 4 | WIN |